Hello everyone, I have a keggle and it is taking a very long time to heat up. It takes about 45 minutes to heat to mash temp, and over one hour to heat to sparge or boil. I have a banjo burner and a standard 15.5 gal keggle. I also adjust the air intake to the smallest opening, which seems to get rid of the yellow flame as much as possible. I set it to a level where the hiss is barely audible.

One thing I do not do is use a lid, should I?

Also, I am not turning the propane flow high enough? I used to have it roaring, but I would only get 2.5-3 (5 gallon) batches per propane tank that way. Now I can usually get 4-5, but brewing takes about 6 hours on a good day due to the excessive heating times.

I've also attached pictures of my setup, maybe there is some glaring problem. As you can see I welded brackets onto my burner to stabilize the keggle.

I have a mediocre burner that I modified in the same way as yours. It also had issues with my keggle, so I use my smaller 11 gallon Bayou kettle. I might be wrong, but that doesn't look like a banjo burner. I believe banjo's have a larger burner with more BTU's.

Anyway, what I did was make an insulation jacket for my keggle out of Reflectix . It only went about 2/3 of the way down the side of the kettle from the top down, since the lower section is too hot and will melt the insulation. It seemed to help retain heat, but it was only a Band-Aid fix.

You can use the lid for heating water and bringing wort up to a boil, but you'll want to remove it when the boil begins.

In my case, my burner has a safety switch that will shut the burner off if it gets too hot. Every time I try to boil in my keggle I have to crank up the heat, but it always trips the safety switch. My smaller kettle doesn't require as much heat, so it doesn't trip it. When I did get the keggle to actually boil it was only a gentle boil, so I gave up on it. A new burner is on my wish list for this year...

the SP-10 is air starved with a keggle. the add-on tabs make it fit, but there is only 6 1" tall exhaust vents, and it has to vent DOWN. it just can't breath.
its not the burner or the BTU's its the frame/vessel combo.
just wasting propane.